document.write( "Question 815696: a crow left Valley College at 2:00 pm and flew straight east at 21 miles per hour. another crow left Valley College at 3:oo pm and flew straight north at 24 miles per hour. how far apart (as the crow flies) are they at 6:00 pm (to the nearest tenth of a mile) \n" ); document.write( "
Algebra.Com's Answer #491165 by TimothyLamb(4379)\"\" \"About 
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s = d / t
\n" ); document.write( "d = s * t
\n" ); document.write( "---
\n" ); document.write( "east crow at 6 pm:
\n" ); document.write( "t = 6 - 2 = 4 hours
\n" ); document.write( "d = 21 * 4 = 84 miles
\n" ); document.write( "---
\n" ); document.write( "north crow at 6 pm:
\n" ); document.write( "t = 6 - 3 = 3 hours
\n" ); document.write( "d = 24 * 3 = 72 miles
\n" ); document.write( "---
\n" ); document.write( "distance between crows at 6 pm:
\n" ); document.write( "use pythagorean thm:
\n" ); document.write( "h = sqrt( aa + bb )
\n" ); document.write( "h = sqrt( 84^2 + 72^2 )
\n" ); document.write( "h = sqrt( 7056 + 5184 )
\n" ); document.write( "h = sqrt( 12240 )
\n" ); document.write( "---
\n" ); document.write( "h = 110.6 miles
\n" ); document.write( "---
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